Surya Tr

Senior Systems Engineer with 4.5+ years of IBM z/OS Mainframe experience spanning telecom billing (Telstra) and healthcare (Aetna) domains. Proven specialist in COBOL development, JCL batch processing, production support, and RCA-driven incident management. Adept at reducing recurring failures, delivering COBOL module enhancements, and achieving consistent 8/8 client satisfaction scores. Immediate joiner seeking mainframe roles in Chennai and across India.

Senior Systems Engineer at Infosys Limited (2021-09 – Present)

Client: Telstra Telecom Domain – Production Support & BAU

• Monitored and managed 200+ daily batch jobs for telecom billing systems, maintaining high SLA adherence across monthly release cycles.
• Reduced recurring batch failures by 40% through systematic RCA and implementation of corrective/preventive action plans.
• Validated data processing and performed file integrity and health checks.
• Managed end-to-end change requests and BAU release activities, coordinating with cross-functional onshore and offshore teams for zero-defect deployments.
• Achieved 8/8 client feedback score for four consecutive periods, recognised for consistent delivery quality and proactive communication.

Senior Systems Engineer at Infosys Limited (2021-09 – Present)

Client: Aetna Healthcare Domain – Application Enhancement & Support

• Monitored batch job execution and ensured smooth processing of provider data.
• Analyzed and resolved production issues and job abends within SLA timelines.
• Implemented 5+ COBOL fixes and minor enhancements based on business requirements, validated through unit and regression testing before release.
• Collaborated with onshore business analysts to gather requirements, conduct impact assessments, and deliver application changes with zero post-release defects.
• Performed root cause analysis (RCA) using Xpediter, documenting findings and maintaining a knowledge base for recurring issues.

Bachelor of Engineering in Electrical & Electronics Engineering – RMK Engineering College, Kavaraipettai, Chennai (2017 – 2021)

Higher Secondary Certificate (HSC, Class XII) in Tamil Nadu State Board – Velammal Matric Hr, Sec, School (2016 – 2017)

Secondary School Leaving Certificate (SSLC, Class X) in Tamil Nadu State Board – Velammal Matric Hr, Sec, School (2014 – 2015)